Shock absorber



Feb. 1,1927. 1,616,091

B. SCOTT SHOCK ABSORBER Filed May 5. 1926 lll gjm/vanto@ 55AM/MUN 56077' 3g Mms Paientea ret.A 1, 1927.

BENJAMIN SCOTT, 0F WEST END, CALIFORNIA.

SHOCK ABSORBER.

Application led May 3,

This invention relates to shock absorbers for vehicles and is' especially adapted for automobiles.

An object of my invention is the provision of a simple, efficient and inexpensive shock absorber.

With the foregoing object in View, together with such other objects as may subsequently appear,'this invention resides in the construction and arrangement of parts hereinafter described and claimed, and illustrated in the accompanying drawings, in which Figure 1 is a view mostly in section of one l'orm ot' my device.

Figure 2 is a cross section taken on the `line 2 2 of Figure 1, and

Figure 3 is a fragmentary sectional view of an alternative form of my invention.

Referring to Figure 1, the numeral 5 indicates a cylinder adapted to receive a fluid which is indicated by 6, this fluid preferably being oil which may be of any desired density. The cylinder 5 is closed at itsupper end by a cap 7 herein shown as threadedly engaging the cylinder, although it is to be understood that the cap may be secured to the cylinder in any suitable manner. A rod 9 extends into the cylinder from the outside thereof through the cap 7, a stuling box 10 being provided to prevent leakage between the rod. and the cap. At the lower end of the rod 9 a valve 12 is disposed which is integral with .the rod and positioned transversely thereof. This valve is provided with apertures 15, as shown in Figures 1 and 2, tour of such apertures being herein shown, although it is to be understood that any de'- sired number may be provided. Above the valve 12 is disposed a disk 16 which encircles the rod 9 and is free to slide thereon. The disk 16 is provided with apertures 18k disposed outwardly beyond the apertures 15 of the disk 12 and completely oiset from the apertures 15. A

An annular groove 19 is provided in the upper face of the disk 16 and has communication with the apertures 18. `This groove is indicated in Figures 1 and 2. The disk 16 is shown in Figure 1 as lying on the valve 12. It will be noted from Figure 1 that above the disk 16 as there shown a disk 0r member 20 is provided. This disk functions as. a stopping means for limiting the upward motion of the freely slidable disk 16 which moves upwardly on the downward stroke of the rod 9. The disk 20 is circular and is nular groove 25 which above the valve 12.

1926. Serial No. 106,460.

shown in the drawing as being integral with the rod 9 and parallel with the valve 12 and the disk 16. The limiting member 20 is provided with apertures 22 which lie in a circle of the same diameter as that on which the apertures 18 of the disk 19 lie.- In the lower face of the member is provided an ancommunicates with the apertures 22.

Thispgroove is'of the same diameter as the groove 19 in the disk 16, the groove 25 coinciding with the groove 19v when the disk 16 and the member 20 come into contact with each other, as they do on the downward stroke of the rod 9. It will be noted that the valve 12, the disk 16 and ber 2O are herein stantially the same diameter and having diameters less than the internal diameter of the cylinder in order to provide a small annular clearance between them periphery of the cylinder.

The cylinder 5 and the rod 9 may be secured to parts of the vehicle in any well known and suitable manner. When the rod 9 moves downwardly the fluid 6 below thevalve 12 may pass upwardly through the apertures 15, then through the apertures 18 ot' the disk, since the latter. is then spaced Thedisk 16 on the downward stroke of the rod 9 will have its upper face 'in contact with the lower face of the member 20. The oil which flows through the apertures 18 of the disk 16 will then be free to pass 4through the apertures 22 of the limiting member 20. This will be true even though the apertures 18 are not directly opposite the apertures 22 of the limiting member for the fluid passing through the apertures 18 may circulate through the annular grooves l19 and 25 until it reaches the aperthe limiting mem' shown as being of sub` and the inner tures 22. On the upward stroke of the rod i.

that the lower surthe endv of the free or down stroke of thev rod 9.

then be open and Figure 3-'shows ragmentarily an alterna# tive form of my device, this form being the same as that shown in Figure 1 except for the construction of the valve, the disk and the limiting member. Figure 3 shows a rod 9 having integral therewith at its lower end a valve 30, the diameter of which is considerably less than the internal diameter of the cylinder. This valve need not have any apertures therethrough. Above the valve 30 is disposed a disk 31 provided with apertures 32 which may be closed by the valve` 30.' Spaced above the ydisk 31 as shown'in Figure 3, is an annular limiting member 33 integral with the rod 9 andparallel with thev valve30 and the disk 31. The disk 31 has a diai'netery slightly less than the internal' diameter ofthe cylinder while the diameter of the limiting member 33 is even less than that of the valve 30.

In the operation of this form of my de'- vice, itwill be" readily seen that when the rod 9 moves downwardly the-limiting member 33 will come into contact with thev disk 31. The'apertures 32 in the disk 31 will the fluid may How upwardly therethrough without hindrance from the limiting member 33. On the rel-- ative upstroke of: the rod 9, the 'Huid 6 may pass below the ,valve through theannular space between the disk 31 and the inner periphery of the cylinder. v v

Although I have shown and described one embodiment of my invention, it is to be understood that the same is susceptible of various changes; and I reserve the right to employ such as may come within the scope ot' the appended claims.

I claim:

1. In a shock absorber, a cylinder adapted to hold a fluid, a rod reciprocable in said cylinder, an apertured disk slidableon said rod, a valve on one side of saiddisk secured to said rod and means for limiting the movement of said disk, the aperture referred to in said disk being beyond 'said rod.

9.. -Inva shock absorber, a cylinder adapted to hold va fluid, a rod reciprocable in said cylinder, an apertured diskslidable on said rod, a valve on one side of said `disk secured to saidl rodi/and means for limiting the movement of said disk, saidmeans comprising a projection on said rod, the aper- I'ture referred to in said disk being Ibeyond said rod.

3. In a shock absorber, a cylinder adapted to hold a lfluid, a rod reciprocable in Vsaid cylinder, an apertured disk slidable on said rod, a valve on one side of said disk secured to said rod and `means for limiting the movement of saiddisk, said valve and said disk having diameters less than the internal diameter of said c linder, the aperture reerred to in said sk being beyond said rod.

4. In a shock absorben', a cylinder adapted to hold a Huid, a vrod reciprocable in said cylinder, an apertured disk slidable on said rod, a valve on one side of said disk lsecured to said rod and means for limiting the movement of vsaid disk, said valve and said disk having diameters less than the internal diameter of said cylinder, said disk i being slightly less in diameter and saidivalve .being of considerably less diameter than the internal diameter of said cylinder, the aperture referred to in said disk being beyond said rod.

5. In a shock absorber, aeylinder adaptedto holdY a fluid, a rod reciprocable in said cylinder, an apertured disk slidable on said rod, a valve on one side of said disk 'secured to said rod and means for limitingthe movement of said disk, said valve and said disk having diameters slightly less than the internal diameter of said cylinder, the aperture referred to in said disk being beyond said rod.

6. In a shock absorber, a cylinder adapted to hold a fluid, a rod reciprocable in said cylinder, an apertured disk slidableon said rod, a valve on one 'side of said-disk secured to said rod andv means vfor limiting the movement of-said disk,`said valve and said disk having diameters slightly less than the internal' diameter of said cylinder, said disk and said valve each having an aperture therein, the aperture in said disk being fully oiset from the aperture in said valve, said limiting means comprising a disk Isecured to said rod and having an aperture BENJAMIN SCOTT. 

